Science

Thursday, 9 April 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Tears
The frequency of crying depends on human nature.
There is no equation to calculate how often people cry. It depends on various factors, such as emoti ...
Earth
It is similar with the oceans - depending on the divisions, there are from three to five of them.
We distinguish oceans: Pacific, Atlantic, Indian, Southern, and Arctic. The basic ones are considere ...
Enceladus
Enceladus was discovered by William Herschel on August 28, 1789.
Deimos
The surface of Deimos is covered with a few craters.
These craters are less visible than on the other moon because they are filled with regolith (rock dust).
Aurora
Auroras are caused by magnetic storms in the Sun.
Huge amounts of high-energy charged particles (mainly protons and electrons) are then ejected from t ...
NASA
The Space Shuttle program launched on April 12th, 1981, was the fourth crewed program in NASA's history.
It launched a total of 135 missions and was the first program to reuse a spacecraft. Its main goal w ...
Anorexia Nervosa
Anorexia has a high mortality rate.
It has the highest mortality rate of all mental disorders. Half of women with the disorder make a fu ...
Moon
The moon was formed about 4527 billion years ago, or about 30 to 50 million years after the formation of the solar system.
Earth
Most people live in the northern hemisphere.
This is because the Northern Hemisphere accounts for 68 percent of all landmass. It is estimated that in the future up to 90 percent of the population may live in this part of the globe.
Cosmos
The early universe lasted from 1 picosecond for 370.000 years.
During the first stages of this period, it was still too hot for the elements to form spontaneously ...